CalDigit AV Pro 5TB Professional External Hard Drive USB 3.0 and FW 800 (AV-Pro-U3-5TB-US) Removable Drive Design - Easily swap drives between multiple units or replace when full UASP ready USB 3.0 - Efficient, fast transfer speeds up to 430MB/s SSD Compatible - Available in SSD equipped models or replace existing drive with SSD module Robust Construction - Die-cast Aluminum Body Dual Fire wire 800 - Daisy chain multiple units from a single Fire wire 800 port